Powering Scotland’s East Coast

Projects

Inch Cape

At 1.1 gigawatt, Inch Cape is one of Scotland’s largest offshore wind farms. Sited in the North Sea, 15 kilometres off the Angus coast, its onshore transmission infrastructure is in East Lothian where the project connects to the national grid. Inch Cape is now in construction with full operation due in 2027.

Inch Cape’s offshore site covers a total of 150 square kilometres, roughly the size of the island of Hoy in Orkney. It will comprise 72 wind turbine generators, each up to 274 metres tall, installed on a combination of monopile and jacket foundations in water depths ranging from 34 metres to 64 metres. The monopiles will be amongst the world’s largest with lengths of up to 105 metres, a maximum diameter of 11.5 metres and with the heaviest weighing 2700 tonnes.

A total of 150 kilometres of array cables will bring the power to a single 66 kilovolt (kV)/220kV substation on a 68 metre jacket foundation at the heart of the wind farm. Electricity from the offshore substation will be transmitted 85 kilometres via two 220kV subsea export cables to landfall in Cockenzie, East Lothian. 

The export cables will join a short section of onshore export cable which will connect into the new 220/275kV onshore substation being constructed on the brownfield site of the former Cockenzie Power Station. The substation will comprise two super grid transformers, shunt reactors, harmonic filters, static var compensators and additional electrical equipment. 

From the substation, the power will be transported around 300 metres underground to the existing Scottish Power Energy Networks (SPEN) 275/400kV substation. From here it will enter the national transmission system on its way to providing green electricity to UK homes, businesses and industry.

The project will be operated and maintained out of a purpose-built facility at the Port of Montrose, in Angus.

You can find out more on the project website and you can also keep up to date on LinkedIn.

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